Mud drum



. July 311923- J. G. WHITLATCH ET AL MUD DRUM Filed 001;. 14, 1920 Patented July 31, 1923.

NITED-"STATES AT NT o 'm i-i;

JACOB G. WHITLATCH AND OSCAR R. WILLIAMSON, OF IOWA FALLS, IOWA,

MUD, Dania.

Application filed October 14, 1920, s iiai utl iasee.

To all whom it may concern:

' Be it known that we, JACOB ,G. WmrLA'rcH and OSCAR R. WILLIAMSON, citizens offthe United States of America, and residents of Iowa Falls, Hardin County, Iowa, have invented a new and useful Mud Drum, of which the following is a specification. I

The object of this invention is to provide improved means for removing sediment such as mud from the interior ofa steam boiler and water leg thereof- Where such construction obtains.

A further objectof this invention is to provide an improved construction for a mud drum and its attachment to a' st'eamboiler whereby sediment miay accumulate continuously fromsaid boiler said'drum and be discharged from said mudidrum' on occasion. v,; A further object of this invention is to ,provide an improved construction for mud drums whereby thewater contained therein is maintained at a high temperature to the end of'establishing and supporting a"circ11 lation of waterthroi1gh",the mudfdrums from and to the boilerji j Our invention. consists in the construction, arrangement and combination of elements hereinafter set forth, pointedfout in our claims and illustrated by the accompanying drawing, in which Figure 1 is a side elevation of a boiler of conventional type showing one of the mud drums attached thereto in position for practical use. Figure 2 is an elevation partly in section of the mud drum on an enlarged scale, showing the heating coil arranged therein. Figure 3 is an elevation of one end and Figure 4 an elevation of the opposite end of the mud drum, various pipes being shown in section.

In the construction and application of the devices as shown the numeral 10 desi'g nates a steam boiler having a water leg 11 and a dome 12, all of conventional type. An injector 13, also shown conventionally, is mounted on one side of and communicates with the boiler 10 in a common manner. The mud drum is constructed primarily of a metal cylinder 14; and heads 15, 16 on opposite ends thereof, which cylinder and heads are imperforate and connected in a water-tight manner except as hereinafter provided. The mud drum is located adjacent to and alongside of the lower portion plane below the bottom of the Water in said water leg, which bottom is indicated by tlie communicates at one end with-the opposite end'jof" the water leg 11 adjacent to and above the line 17 and communicates at "its other end with the interiorof the mud drum through a .hole 22: inthe lower portion of the 7 --.head' 16; A valve 23 is mounted in andcon- .trolsthe passage through thepipe 21. A

discharge, pipe 24 communicates with and leads from; the interior of the mud drum r the water leg 11 and 1116's wholly are through ahol'e" 25 in the lower portion of j the ,1head 15,, and a valve 26 is mounted in I- a nd controls the passage through said discharge pipe. A'stea-m coil '27 is mounted injthe cylinder 14 and extends substantially from end Qtoend thereof. One endportion of the steam coil 27 communicates through 'a hole 28in thehead 15Ywith' a steam pi'pe29 leading from thedome 12 and a valve 30. i

mounted in said, steam pipe and controls the passage therethr'ough. The 'op'posite'end of the steam coil 27 communicates through a hole, 31 in the head 16 with one end of a steam pipe 32, the opposite end of said steam pipe communicating with the injector 13.

In practical use of the boiler the valve 26 i is closed and the valves 20 and 23 are opened i and sediment gravitates tothe line 17 of the water leg and through the pipes 18 and 21 into the mud drum. When the injector 13 is used to supply feed water to the boiler in the common way, the valve 30 is opened and live steam is taken from the dome, 12

carry off sediment therefrom into the; mud

drum wherfe it 'settles on account of the altitude of the hole 19 relative to that of the hole 22. After the injector has been used and the valve 30 is closed,- the valve 520 also is closed and the valve 26 is opened. The head of water in the boiler 10 and leg 11; :tiig' mented by Whatever steam pressure may obtain in the boiler, is exerted tlirdng'li the pipe 21 on the contents of the mud drum and, owing to the lbcation of the holes 22 and 25in substantially the same plane current is establishedlongitudinally of the cylinder 14 betweenthe pipes 21 and 24 to the end of driving the sediment and water out of the mud drum through the discharge pipe, the current traveling the length of the drum' and in the direction of the discharge pipqe.

epeated experiment has demonstrated the certainty of the operation as above described and the efficacy of such operation in removing sediment from the boiler, water leg and mud drum. a

When elements above described are employ'ed on a steam boiler: the operation of depositing sediment in the water leg and causing it to' filtrate through the pipes 18 and 21 into and become deposited on the bottom of the mud drum is faeilitate'd by a itatien and circulation (if the water, when the injector steam or live steam heats the water above the normal inthe mud drum. Repeated experiment has" demonstrated that snbstanti ally all of the sediment contained in the feed water is deposited in the mud drum during, the normal use of the steam boiler and that said sediment may be and is discharged from the mud drum during' an operation as above described.

' of Men,

l/Ve claim as our invention- 1. The combination with a steam boiler of a mud drum located below the lowermost water line therein, valve controlled communications between opposite ends of said mud drum and said boiler adjacent to the lowermost water line thereof, said communications differing in altitude in respect to opposite ends of said drum, means for raising the temperature of water in the mud drum consisting of a steam coil located within said drain, asteam dome on the boiler", valve controlled pipe communicating between said dome and one end of said coil, a return steam pipe communicating between the opposite end of said (3011 and said boiler at a point below the dome thereof, and

,i-I'ie'an's of discharge from said mud drum.

2 A mud drum formed of a recumbent 'lylinder' and end closures thereon, a steam coil iii said drain, a pipe extending'fr'om one endof said coil through one end of said drum and adapted to communicate with, a steam demeanetner pipe leading from the opposite end or said can throng-lithe opposit'e end of said drum and adapted to com.-

nunicate with a boiler below" said dome pipes communicating with and leading from opposite ends of said drum, at different altitudes and adapted to eeinniunic'ate with the lowermost portion of said boiler in substantiallythe same plane; valves on said pipes, and a valved diseharge pipe communieating through one end o ri said drum with the lowermost portionof. the cylinder. Signed at Iowa Falls, in the county of Hardin State of Iowa, this 27th day 1920- osGAR R; WILLIAMSON.

' JACOB G. VVHITLATCH. 

